With a new flu virus variant circulating, scientists fear more sickness this winter. The vaccine may be slightly less effective but doctors still urge getting one ASAP.
The U.S. may be entering another rough winter for flu, according to early data.
"The signs are, it could be a big season," says Richard Webby, who studies the flu at the St. Jude Children's Research Hospital in Memphis. "The flu season might have a l... [2975 chars]